Dilatisphaera |
Dilatisphaera tubula
sp. nov. |
Nd |
Nd |
|
Multiplicisphaeridium |
Multiplicisphaeridium mingusi
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium sp. Uute.& Tynn.,1991
sp. nov. |
USSR(Estonian SSR) |
Late Arenigian |
|
Acrosphaeridium |
Acrosphaeridium
|
USSR(Estonian SSR) |
Early Caradocian |
|
Acrosphaeridium |
Acrosphaeridium densum
|
USSR(Estonian SSR) |
Late Llanvirnian |
Early Caradocian |
Acrosphaeridium |
Acrosphaeridium esthonicum
|
USSR(Estonian SSR) |
Middle Caradocian |
Middle Ashgillian |
Actipilion |
Actipilion druggii
|
USSR(Estonian SSR) |
Late Caradocian |
Middle Ashgillian |
Akomachra |
Akomachra ovula
|
USSR(Estonian SSR) |
Late Arenigian |
Early Llandeilian |
Arcosphaeridium |
Arcosphaeridium
|
USSR(Estonian SSR) |
Late Caradocian |
Middle Ashgillian |
Arcosphaeridium |
Arcosphaeridium diversispinosum
|
USSR(Estonian SSR) |
Late Caradocian |
Middle Ashgillian |
Aremoricanium |
Aremoricanium deflandrei
|
USSR(Estonian SSR) |
Late Llanvirnian |
Early Llandeilian |
Aremoricanium |
Aremoricanium rigaudiae
|
USSR(Estonian SSR) |
Llanvirnian |
Early Caradocian |
Aremoricanium |
Aremoricanium squarrosum
|
USSR(Estonian SSR) |
Caradocian |
Ashgillian |
Aremoricanium |
Aremoricanium sp. Uute.& Tynn.,1991
sp. nov. |
USSR(Estonian SSR) |
Early Arenigian |
|
Axisphaeridium |
Axisphaeridium timofeevii
|
USSR(Estonian SSR) |
Llandeilian |
Early Caradocian |
Axisphaeridium |
Axisphaeridium tricolumnelare
|
USSR(Estonian SSR) |
Caradocian |
Ashgillian |
Bacisphaeridium |
Bacisphaeridium bacifer
|
USSR(Estonian SSR) |
Middle Ashgillian |
Late Ashgillian |